Radiator



Aug. 24 1926. 1,597,014

A. B. CAMPBELL Er AL RADIATOR Filed Feb. 11, 1924 muy".

Patented Aug. 24, 1926.

UNITED `STATES PATENT orricE.

ARTHUR B. CAMPBELL AND IRVING L. BROl/VNELL, OF ORLAND, CALIFORNIA. i

RADIATOR.

Application led February 11, 1924. Serial No. 692,104.

' hot water or steam radiators as now found in buildings and whereby the same may be changed to Velectrically heated radiator units and with consequent elimination of the present cellar furnaces and boilers, and the change made without mechanically altering the existing radiator proper or moving it from its original position.

We achieve the desirable objects outlined by the apparatus shown in the accompanying drawings and in which:

Figure 1 is a side elevation showing our i improved radiator as it would appear` installed;

Figure 2 is an end elevation of the radiator as seen in Figure 1;

Figure 3 is an enlarged perspective view showing the general appearance of the electrical heating unit; and

Figure 4 is an enlarged perspective view of one of the vented plugs for theexpansion ipe.

1n the gures, (1) represents a standard hot water or steam radiator of vertical tubular members connected in -the usual way through the upper and lower ends.

In one of the outlets of the lower end is screwed an electrical heating unit (2) and at the opposite lower end a drain cock (3).

The electrical heating unit may be of any standard construction, with preference given to a formhaving an extended tube (4) conr taining the resistance elements and having .a

threaded flange (5) by means of which 1t may be screwed to the usual pipe inlet of the radiator andpwill then extend as shown, past several of the vertical tubular members.

In large radiators the electrical heatingV unit may extend the full length of the radiator assembly or a separate one inserted from opposite ends if desired.

The winding of the heating'unit is a matter apart from this invention, b'ut the type of winding with a switch (6) for throwing in one or more sections, and a suitable thermostat (7) for breaking the circuit upon excessive heat is preferred.

From the heating unit, wires (13) extend to any suitable source of electrical energy.

To the two upper end members of the radiator assembly is secured a relatively large pipe (8) lying horizontally across the upper ends of the members. This pipe is for expansion of the water in heating, also to provide vents at opposite ends vof the heater, and also to provide openings for filling the radiator with water.

At opposite ends of the pipe are Ts each with a pipe plug (10) loosely screwed in place. The pipe plugs are each vented with a small hole (11) as best shown .in Figure 4. V

The expansion pipe (8) is spaced above the radiator proper Vby the two short pipes (12) as shown, and forms Van additional radiator element heated by the slight amount of steam which finds its way in the pipe to 1(gondense and run back into the lower memers. f f f At the right hand upper end we arrange a sight water levelgage tube (14) tapped into the upper T (9) and lower L (15) as shown. This gage tube extends from below the upper edge ofthe radiator to a point above the upper edge, vthereby making it an easy matter to determine when the radiator is full, the desired operative condition of the device being with the radiator entirely lled and the pipe (S) substantially free of water to function as -before mentioned.

The drain cock (3) is for drawing off water when not in use duringlong warm periods, or for drawing olf hot water for plug prevents blowing back of the contained` Having thus described our invention, it Will be seen t0 elfeet the desired Objectives in a simple effective manner and it is just this simple manner of arranging the apparatus With manifest variations that We Wish to cover in our appended claim.

We claim:

A radiator of the character described comprising a series or" vertically arranged tubular members, a header connecting the upper ends of said members, a header conmeeting the lower ends or" said members, means for applying heat thereto at the lower ends of the members, an expansion pipe above and parallel to said upper header, pipes connecting the endsV of the expansion pipe with the tubular end members, and filling and vent plugs en each end of the expansion plpe.

ARTHUR B. CAMPBELL. IRVING L. BROWNELL. 

